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In: Mechanical Engineering

4) A refrigerator in the kitchen at 30 ° C keeps the food section at -12...

4) A refrigerator in the kitchen at 30 ° C keeps the food section at -12 ° C. Refrigerant R-134a enters the evaporator located at the back of the freezer section of a home refrigerator with a degree of dryness of 100 kPa and 20 percent and exits at 100 kPa and -20 ° C. Since the compressor consumes 600 W and the COP of the refrigerator is 2.5, a) calculate the minimum flow (kW) required to keep the mass flow of the refrigerant, b) the heat released into the kitchen air (kW), c) the food section at -12 ° C. (20 point)

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samet mamat answered 5 months ago
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